EP 2687724 B1 20161109 - Piston pump
Title (en)
Piston pump
Title (de)
Kolbenpumpe
Title (fr)
Pompe à piston
Publication
Application
Priority
JP 2012158828 A 20120717
Abstract (en)
[origin: EP2687724A1] According to an aspect of the present invention, there is provided a piston pump (1), comprising: a cylinder (10) formed in a pump body (100); a piston (40) reciprocatable within the cylinder (10); and a seal member (50, 50A) interposed between the cylinder (10) and the piston (40) for sealing fluid tight between a pump chamber (30) and a cam chamber (130), the pump chamber (30) being formed on one end (40a) side of the piston (40) in a sliding direction thereof, the cam chamber (130) being formed on the other end (40b) side of the piston (40) in the sliding direction, wherein the seal member (50, 50A) includes a sliding contact surface (53) closely contactable with the cylinder (10) or the piston (40) and a seal section (L1, L3) to be sealed by the sliding contact surface (53) in the sliding direction of the piston (40), and wherein a length of the seal section (L1, L3) is larger than a stroke length (S1) of the piston (40).
IPC 8 full level
F04B 53/02 (2006.01); F04B 1/04 (2006.01); F04B 53/16 (2006.01)
CPC (source: EP)
B60T 8/4031 (2013.01); F04B 1/0448 (2013.01); F04B 53/02 (2013.01); F04B 53/164 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2687724 A1 20140122; EP 2687724 B1 20161109; ES 2603631 T3 20170228; JP 2014020256 A 20140203; JP 5718290 B2 20150513
DOCDB simple family (application)
EP 13176632 A 20130716; ES 13176632 T 20130716; JP 2012158828 A 20120717